NSEFC2B Unit 13 全单元教案4(人教版高二英语下册教案教学设计).docx

WordNSEFC2B Unit 13 全单元教案4(人教版高二英语下册教案教学设计)篇1：NSEFC2B Unit 13 全单元教案4(人教版高二英语下册教案教学设计) The Fourth Period Teaching Aims: 1.Review the useful expressions learnt in this unit by practising. 2.Improve the students reading ability by reading the material. 3.Improve the students writing ability. 4.Enable the students to realize that it is important to protect the estuary. Teaching Important Points: 1.Improve the students reading ability by reading the material. 2.Improve the students writing ability. Teaching Difficult Point: How to improve the students integrating skills-reading and writing. Teaching Methods: 1.Fast reading to go through the reading material. 2.Inductive method to help students write a paragraph successfully. Teaching Aids: 1.the multimedia 2.the blackboard Teaching Procedures: Step Greetings Greet the whole class as usual. Step Revision T:Yesterday we did some practice about modal verbs.Now lets do some more exercises to see if you have mastered them.Please look at the screen. (Teacher uses multimedia to show the exercises on the screen.) Fill in the blanks using must/might/may/can/could and their negative forms. 1.-I saw Mary in the street yesterday. -You _ have seen her.She is still in Australia. 2.-Could I use your bike? -Yes,of course you _. 3.The ground is wet.It _ have rained last night. 4.A machine _ think for itself.It _ be told what to do. 5.Tom,dont play with the valuable bottle.You _ break it. Suggested answers: 1.cant 2.can 3.must 4.cant,must 5.may/might Step Fast Reading T:Good work.But if we want to use the modal verbs correctly,we must practise them as often as possible.Today we will read another passage.The ocean is very important to all the living things,which is known to us,and I think we have also known about the reason why the ocean becomes so important-because of the properties of water,the ocean is very important.The passage we will read is also about water.It deals with “the body of water”.Are you interested in the topic? S1:Yes.But what is the meaning of “the body of water”?I think water has no body. T:Good question.I think you can get the answer to the question by yourself.Now lets read the passage.While you are reading,try to make clear what is the main idea of each paragraph.Besides,try fast reading,it is helpful to improve your reading ability. (Teacher gives students a few minutes to read the passage.) T:Have you finished your reading? Ss:Yes. T:Wang Lin,are you clear about “the body of water”? S2:Yes.I think “the body of water” means the main part of water. T:You are great!Now whod like to tell me the main idea of the first paragraph? S3:An estuary is the body of water where a river meets the ocean. T:Right,thank you for your answer.What about the second one? S4:Let me try.The general idea is that estuaries are great places for natures young. T:Wang Ping,tell me the main idea of the third paragraph,please! S5:Im not sure.I think the third paragraph tells us estuaries are important to animals and plants,so we should try our best to protect them from environmental pollution.Am I right? T:Yes.Congratulations!There is only the last paragraph left.Who can try? S6:I think the main idea of the last paragraph is that estuaries are also important to human beings because they not only provide recreation and education for us but also contribute to the economy. Step Discussion and Explanation T:The general idea of the passage is very clear to us now.Now lets re-read the passage carefully.While you are reading,try to find out the answers to the questions on Page 23.If you need,you can have a discussion about them.Then Ill check your answers. (Teacher gives students enough time to read the passage.At the same time,teacher goes among them and helps them express their own opinions in English correctly.) Suggested answers: 1.Tides provide energy for the ecosystem,and estuaries are protected from waves and storms by islands.In addition nutrients arrive in estuaries from both the land and the ocean.So estuaries are great places for natures young ones. 2.Density means the quality of being dense.In other words,there are more living creatures than any other habitat on earth. 3.Estuaries can make our water clean by absorbing nutrients and pollutants from water coming from inland sources. 4.The function that estuaries can absorb pollutants and nutrients makes estuaries very sensitive to environmental pollution. 5.Estuaries can provide recreation and education for human beings.Besides estuaries also contribute to the economy.So they are very important to human beings. T:Well done.Now you are very familiar with the passage. To understand the passage better,I will explain some important phrases.Please,look at the blackboard. (Teacher writes the following phrases on the blackboard.) 1.providefor e.g.The company will provide food and drink for them. 2.have an opportunity to do something e.g.I had no opportunity to discuss the problem with her yesterday. 3.a variety of e.g.He left for a variety of reasons. There are a variety of patterns for you to choose from. 4.contribute to e.g.His work has contributed to our understanding of this difficult subject. Step Writing T:Up to now,we have learnt a lot about water and known the properties of water and importance of estuaries.Now you are given an opportunity to check if you know a lot about water.Look at the questions on the screen. (Teacher uses multimedia to show the questions on the screen.) 1.Why does an ice cube float? 2.What will happen to a piece of metal if you put it in water? 3.Why do so many species live in estuaries? 4.Why have so many cities been built by estuaries? T:Now imagine that your science teacher asks you to choose one of the questions and write a paragraph to explain it.Use what you learn from this unit and what you know about nature and science to write the paragraph.You must be careful to explain it to make your explanations easy to understand.Youd better look at the tips on Page 24 before you write.Its of great help to your writing. Possible samples: (Question 3) Salt water from the ocean and fresh water from the river mix together in an estuary.The mixing of fresh and salt water creats a unique enviroment filled with life of all kinds.Here,animals can enjoy all the benefits of the oceans without having to face many of its dangers and nutrients arrive in estuaries from both the land and the ocean.So there are so many species living in estuaries. (Question 4) Estuaries are great places for natures young.If many cities are built by estuaries,we can enjoy fishing,swimming and having fun on the beach and scientists and students have endless opportunities to study a varety of life in the habitat.Whats more,estuaries also contribute to the economy through tourism and fishing.So many cities have been built by estuaries. Step Test T:In this unit,weve learnt some important phrases.Now Ill give you a test to check whether youve mastered them or not.Look at the screen,please. (Teacher uses multimedia to show the test on the screen and gives students a few minutes to finish them.Then checks their answers.) 1.The childrens age _(在5岁至15岁之间). 2._(她处理这个问题的方法) is very good. 3.A week later,_（也就是),Oct 1 is National Day. 4.He _(充分利用了) multimedia in the class. 5.The little girl _(对温度很敏感). 6.His actions _(使他受到敬重). 7.He _(设法完成了工作) with very little help. Suggested answers: 1.range from 5 to 15 2.The way she deals with the problem 3.that is 4.took advantage of 5.is very sensitive to temperature 6.made him respected 7.managed to get the work done Step Summary and Homework T:Today,weve done some reading and writing.Weve also reviewed some useful expressions in this unit.After class,go over all the important points we have learnt in this unit.Thats all for today.Class is over. Step The Design of the Writing on the Blackboard Unit 13 The water planet The Fourth Period Phrases:providefor,have an opportunity to do,a variety of,contribute to Step Record after Teaching 篇2：NSEFC2B Unit 13 全单元教案1(人教版高二英语下册教案教学设计) Unit 13 The water planet .Brief Statements Based on the Unit As we all know,the earth is an ocean planet and 99% percent of the living space on earth is in the oceans.It is water that makes the ocean such a great place to live in.This unit mainly deals with the properties of water and how the properties of water make the ocean become so important.We learn this unit to help students not only know about the properties of water,but also learn how to use water in a good way.Besides,we learn this unit to let students realize the importance of protecting water.Of course,it is necessary for students to master the important phrases and sentences in the unit.Meanwhile we should review some important usage of Modal Verbs. .Teaching Goals 1.Talk about water and the ocean. 2.Practise communicative skills. 3.Review Modal Verbs. 4.Write an explanation paragraph. .Background Information 1.What Lies under the Blue Water? Just like the houses we live in,the ocean has several “floors” or layers.Different fish live on different layers and are neighbours,though not always friendly ones! The oceans top layer is the sunlit zone(透光层).It goes down to around 200 meters below water.This layer is warm and bright.It is also home to most plants and fish.Many fish in this layer are streamlined,so they can quickly swim from danger and catch food. The twilight zone(弱光层) is the next layer and is from about 200 to 600 meters below water.Almost no plants grow here. Many animals in this zone swim up to the surface at night to feed,and move into deeper waters during the day.They also eat each other,so many of them have sharp teeth and very big mouths. Many fish in this zone dont have a streamlined body because they lie and wait for prey to come to them. Below the twilight layer is the midnight zone(无光层).It is from 600 meters to the bottom of the sea. The water is cold and completely dark.No plants live here but many small animals can. Many animals in the twilight and midnight zones produce their own lights.The angler-fish(琵琶鱼) is one of them.It has a beautiful light on its head to attract prey! Maybe you have seen one of the coolest films Finding Nemo (海底总动员).Do you remember Marlin,Nemos father,“borrowed” light to help Dory read? That wasnt a flashlight,it was a fish!They also use light to frighten enemies and to “talk” with each other. 2.Water A family of six needs over 20 gallons of water a day,just for basic drinking,cooking and keeping clean;but only one in three of the worlds households has a water supply in the home. Most others get their water from rivers,lakes springs or holes in the ground,or,in town,from stand-pipes shared with hundreds of other families. Throughout the worlds poorest countries women damage their health and lose hours of every day carrying huge containers of water-up to 44 lbs in weight-often from sources several miles away. All too frequently they bring home sickness or death,as well as water.Untreated water,which may have come from a muddy hole shared with cattle,can be lethal,especially for young children.To sink a well or pipe water from a natural spring,and maintain the system afterwards,people need access to land with a water source,to capital,equipment and technical know-how.In towns they may need to lobby the local water authority to repair or extend existing systems. Water is precious,and access to it gives power-to landowners with wells on their land,or to country controlling major international rivers.The demands on the earths water resources are growing rapidly,partly as a result of population growth,but even more because industry now uses such huge quantities-it takes 100 000 gallons to produce a car. .Teaching Time:Five periods The First Period Teaching Aims: 1.Learn and master the new words and the useful expressions of this part. Words:cube,sailor,disadvantages,entertainment Phrases:come up with,happen to Useful expressions:The water is being used to/for We should/could If wewe can It would be better 2.Learn something about water by doing experiment. 3.Do some listening. 4.Improve the students speaking ability by talking. Teaching Important Points: 1.Make the students be free to talk about water. 2.Improve the students listening ability by listening. Teaching Difficult Points: 1.How to finish the task of speaking. 2.How to improve the students listening ability. Teaching Methods: 1.Listening-and-answering activity to help the students go through with the listening material. 2.Individual,pair or group work to make every student work in class. Teaching Aids: 1.the multimedia 2.the blackboard 3.an empty glass,a bottle of water and a bottle of vegetable oil Teaching Procedures: Step Greetings and Lead-in T:Hello,everyone. Ss:Hello,teacher. T:Attention,please.As we all know,every year during the Spring Festival and Lantern Festival in our country,people like to see the lion dance and guess the riddles.Do you like to guess the riddle,then? Ss:Yes. T:OK.Now I have a riddle.Please guess it. (Teacher uses the multimedia to show the riddle on the screen.) Its very important to all the animals and plants. Its also important to human beings. Its liquid at room temperature. Every day you keep in touch with it. You cant live without it. (a thing) T:Whats it? Ss:Its very easy.Its water. T:Yeah,today we will talk about water.Now please tell me what you know about water. S1:Water is used to drink. S2:Water can be used to water the flowers. S3:I think water can be used to make electricity. Step Warming up T:Thank you for your ideas.Next we will make some interesting experiments.Maybe you can learn more about water from the following experiments.Li Lei,would you like to come here to help me? S4:Id love to. T:Now,look at Li Lei and me.We